Gas-engine starter.



E. C. ALLISON.

GAS ENGINE STARTER.

APPLIUATION FILED AUG. 2, 1912.

Patented June 3, 1913.

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ELWOOD C. ALLISON, OF BROOKLYN, NEW YRK.

GAS-ENGINE STARTER.

Specification of Letters Patent.

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Application lcd August 2, 1912. Serial No. 712,957.

To all whom 'it may comp/rn Be it known that l, llmvooo (linnn ALLI-son` a citizen olf the uUnited States, residing' at Brooklyn, in thecounty of Kings, Stato ot New York, have invented certain new aud usefulImg n'overnents in1 Gas-lhigine Starters; and l do hereby declare thelollowing to be a t'ull, clear, and exact deseription of tho invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to gas engine 'startors and has 'for an object toprovide. an auxiliary t'uel reservoir having a. measuru ing chamberwhich communicates with an auxiliary carburetor which in turncomuninioates with an auxiliary compressed air reservoir` the carburetorboing designed to 'feed a system ot' pipes which load into respectivecylinders of the engine, a single manual pressure upon a valve carriedby the tuel rcsorvoi' and upon a second valve carried b v the carburetorserving to inject a suit.- ablo. charge into the cylinder which is readyto take the charge, the said charge being under compression and ready tobe ignited bv the igniting' mechanism of the engine.

With the above objects in view the iu voution consists of certain noveldetails of construction and combination of parts hereinafter tnllydescribed and claimed, itl beingl understood that various modificationsmay be made in the minor details of construction within the scope of theappended claims. v

In the accompanying drawing forming part ot' this specification:mitigure 'l iS a side elevation ot the engine starter. Fig. 2 is alongitudinal sectional View through the device. Fig. ,5l is alongitudinal sectional view taken on the line 4-4t Fig. Q. Fig. l is across sectional View taken on the line Ii-l Fig. Q.

Referring now to the drawing in which like characters ot' referencedesignate similar parts, l() designates a multiple gas engine from cachcylinder of which a pipe '11 leads, there being a check vulve 12 in eachpipo to prevent retrograde movement ot' the mixture in the pipe. Thepipes communi; cate with a main teed pipe 13 which projects through thedash lit ot' the automobile or like vehicle to which my improved ein gine starter may be applied.

The engine starter comprises a luol res-- ervoir l5 which is providedwith a globular measuringl chamber lt below the bottom, the measuringchamber having alined inlet and outlet ports 17 and 18 which arecontrolled by spaced valves it) aud 20 having a common stem 21 whichprojects through the top ot the reservoir and is equipped with a buttonQQ, a helical spring 23 being seated on the stem and being confinedbetween the top ot' the reservoir and the button` and normally servingto hold the outlet valve lo closed and the inlet. valve it) open. llvdepressing the stem down, tho inlet valve may he closed and the outletvalve opened to allow the measured quautitv ot' t'uol to escape.

A carburetor is situated below and supports the t'uel reservoir, thecarlulretercomprising a two picced casing Qll which is sub stautiallycylindrical in cross section and is provided with an outlet port Q5, andin the oppositie end with an air inlet port QG, there heilig' a ituelinlet port 27 termed in the [op midway between the outlctand air portsand through which the measuringr chamber discharges its` contents intotho car bnreter by gravity feed. The outlet port ot the carlimrotcrcommunicates with the common conductor pipe t3, aruba chock valve QS isarranged in the outlet` port to prevent retrogrado movement of themixture through the port. splash cup 29 is disposed on tho carburetorbottom to catch tho discharge from the measuring` chamber and splash thesame baclein order that the tuel maiy he finally divided to insure theproper mixing' o't the tuel with the incoming compressed air. Av screenis 'secured in the bore ol the carburetor between the splash cup andoutlet port.

A compressed air tank 3l is secured to the fuel reservoir'by strapbrackets' 3Q and :373, a conductor pipo 34 opening through the bottom otthe air reservoir and conuunnieating with the air intake port QG ol theearlnlroter. For letting a` putt' ot' tuunprcssctl air into thecarburetor simultaneously with the discharge o'l the luel 'from themeasuring chamber into the carburetor, T provid(` a plug valve 35 whichis provided with a transverse port llt; adapted to register with thebore ot the pipo` the port being normall)Y held out ot registration withthe boro of the pipo bv means of a helical spring il which exerts' anoutward pressure upon the plug. rlhe plug is ei'lnipijied withanexternal head or button :ttl by means ol winch the plugmay be pressedagainst the tension of the spring to establish communication between thecompressed air reservoir and carbureter.

The method. of operation is as follows :.The stem 2l is depressedsimultaneously with the plug valve 35, a measured quantity of fuelentering thcvcarbureter together with a pu of compressed air, and themixture then being injected under pressure through the outlet port ofthe carbureter and into the ifeed pipes 1l.l the mixtures under pressurethen entering the cylinder ready to take the charge'. The ignitingmechanism of the engine is now actuated to fire the compressed chargeand start the engine.

What is claimed, is

1. A gas engine starter including' a fuell reservoir, a measuring tankcommunicating therewith, and having an outlet port, a carburetercommunicating with said outlet port and having a mixtureoutlet port andan air intake port on opposite sides of said measuring v tank outletport, a compressed air reservoir communicating with said air intakeport, means for manually establishing communication between saidmeasuring chamber and Loeaeoi said carbureter, and othei` means formanually establishingcommunication between said air reservoir and saidcarbureter. a

2. A gas engine starter including a fuel reservoir, a measuring tankhaving an inlet po'rt opening through the bottom of said reservoir andhaving an outlet port in vertical alinement with said inlet port, acarbureter communicating with said outlet port, Valves in said inlet andoutlet ports,v

a commonmanually controlled stem connecting said valves and servingl tohold one of said Valves closed and the other of said Valves open, saidcarbureter having a mixture outlet port and an air intake port onopposite sides of said measuring chamber outlet port, a compressed airreservoir connected with said air intake port, and means Jr`or manuallycontrolling communication between. said reservoir and said air intakeport.

In ltestimony whereof, I ailix my signature, in presence of twowitnesses.

' ELwooD o. ALLisoN.

lWitnesses JOHN J. Ron. FANNIE C. OVERTON.

Copies of this patent may be obtained for ve cents eacnfby addressingthe Commissioner of Patents,

' Washington, D. C.

